3be6994b-a0bb-47d9-90b0-a026918a7a9b urn:uuid en UTF-8 nonGeographicDataset nonGeographicDataset 2025-06-23T07:03:28 creation ISO 19115 2016 OSU TPXO9 atlas 3be6994b-a0bb-47d9-90b0-a026918a7a9b TPXO9-atlas is 1/30 degree resolution fully global solution, obtained by combining 1/6 degree base global solution TPXO9.v1 and 1/30 resolution local solutions for all coastal areas including Arctic and Antarctic. There is no difference between the two solutions in the deep ocean. TPXO is a series of fully-global models of ocean tides, which best-fits, in a least-squares sense, the Laplace Tidal Equations and altimetry data. Each next model in TPXO series is based on updated bathymetry and assimilates more data compared to previous versions. We support only current and previous versions. TPXO models were obtained with OTIS. The methods used to compute the model are described in details by Egbert, Bennett, and Foreman,1994 and further by Egbert and Erofeeva,2002 The tides are provided as complex amplitudes of earth-relative sea-surface elevation for eight primary (M2, S2, N2, K2, K1, O1, P1, Q1), two long period (Mf,Mm) and 3 non-linear (M4, MS4, MN4) harmonic constituents (plus 2N2 and S1 for TPXO9). TPXO solutions are provided in binary and netcdf formats. The binary format can be read using OTPS (Fortran) or TMD (Matlab) packages. To refer to TPXO models in your publications please use the citation: Egbert, Gary D., and Svetlana Y. Erofeeva. "Efficient inverse modeling of barotropic ocean tides." Journal of Atmospheric and Oceanic Technology 19.2 (2002): 183-204. http://volkov.oce.orst.edu/tides/tpxo9_atlas.html {"type": "Polygon", "coordinates": [[[90.0, -60.0], [174.0, -60.0], [174.0, -8.0], [90.0, -8.0], [90.0, -60.0]]]} 90.0 174.0 -60.0 -8.0 040503 - Physical Oceanography NCI THREDDS Data Server documentDigital HTML